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    The effects of N-acetylcysteine on pulmonary functions in patients undergoing on-pump coronary artery surgery: a double blind placebo controlled study
    (Verduci Publisher, 2016) Erdil, N.; Eroglu, T.; Akca, B.; Disli, O. M.; Yetkin, O.; Colak, M. C.; Erdil, F.
    OBJECTIVE: To investigate the effects of N-acetylcysteine (NAC) on pulmonary function tests and arterial blood gases in patients undergoing on-pump coronary artery surgery. PATIENTS AND METHODS: The effect of NAC was assessed within the scope of a prospective, single center, double-blind, placebo-controlled, parallel group study. Eighty-two patients undergoing coronary artery bypass grafting were randomized into two groups to receive either placebo (group 1, n = 40) or NAC (group 2, n=42). Both the NAC group and the placebo-receiving control group also included a COPD subgroup consisting of patients with an FEV1/FVC ratio of < 0.7 and an FEV1 value of 50-80%. Pulmonary function tests were performed preoperatively and on postoperative day 60. RESULTS: Both groups were similar with respect to age, gender, preoperative risk factors, ejection fraction (EF), mean cross-clamp time, ventilation time, intensive care unit (ICU) stay, atrial fibrillation (AF) and hospital stay (p > 0.05). Postoperative FVC and FEV1 values in group 1 and the postoperative FEV1, FEV1/FVC and FEF 25-75 values in group 2 were lower in comparison to their preoperative values. However, in both group 1 and 2, the decreases observed in these parameters were not statistically significant (p > 0.05). In the COPD subgroup of group 1, a postoperative decrease was observed in the FEV1 and FEF25-75 values, with the FEV1 decreasing by 4.55%, and the FEF25-75 decreasing by 4.2% (p < 0.05). In the COPD subgroup of group 2, no significant decrease was observed in the pulmonary function test values (p > 0.05). CONCLUSIONS: This study demonstrated that NAC administration in COPD patients undergoing on-pump coronary artery surgery resulted in the preservation of pulmonary functions.
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    On-pump Coronary Artery Bypass Surgery in High-risk Patients Aged Over 65 Years (EuroSCORE 6 or More): Impact on Early Outcomes
    (Field House Publishing Llp, 2009) Erdil, N.; Nisanoglu, V.; Kaynak, M.; Fansa, I.; Eroglu, T.; Cihan, H. B.; Battaloglu, B.
    The results of on-pump coronary artery bypass graft (CABG) surgery in 166 high-risk elderly patients (EuroSCORE 6 or more; over age 65 years [mean 71.8 years]) were compared with 176 low-risk elderly patients (EuroSCORE below 6; over age 65 years [mean 68.8 years]). There was no significant difference in hospital mortality or number of grafts between the two groups. Rates of motropic agent use, intra-aortic balloon pump insertion and atrial fibrillation, and the duration of intensive care unit and hospital stay were significantly higher in high-risk than low-risk patients. There were no significant differences in the incidence of major complications between the two groups. The results suggest that, in selected patients, on-pump CABG can be safely performed in high-risk patients over 65 years old with no effect on mortality.